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Chemistry

Chemistry
The percentage of Nitrogen in Air is

0.03
78.03
0.94
85.02

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Chemistry
A pungent smell often present near the urinals is due to

Chlorine
Sulphur-di- oxide
Ammonia
Urea

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Chemistry
The chemical name of rat poison is

Potassium cyanide
Zinc oxide
Zinc phosphide
Lead nitrate

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Chemistry
Vinegar is an aqueous solution of

Citric acid
Acetic acid
Hydrochloric acid
Oxalic acid

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Chemistry
Among the following, which is always found in free-state in nature?

Copper
Silver
Sodium
Gold

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Chemistry
The antiseptic compound present in dettol is

Biothional
Enloroxylenol
Cresol
Iodine

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MORE MCQ ON Chemistry

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